Originally a typo of flashy
, 'FLASJUY' is now the more commonly accepted term.
A way of getting someones attention. Usually used to 'flash' someones highlight (in conjunction with the word that would actually set off the highlight) in programs such as mIRC and COGS.
Often used repetitively with increasing amounts of exclamation marks (just to ensure you get the other persons attention and/or to annoy them)